The augmented matrix of the system of equation is written as

\(\displaystyle{\left[\begin{matrix}{5}&{7}&-{36}\\-{8}&-{11}&{57}\end{matrix}\right]}{\left[\begin{matrix}{38}\\-{60}\end{matrix}\right]}\)

asked 2021-03-05

\(3x+7y-20z=-4\)

\(5x+12y-34z=-7\)

asked 2021-05-26

asked 2021-05-07

Suppose that the augmented matrix for a system of linear equations has been reduced by row operations to the given row echelon form. Solve the system by back substitution. Assume that the variables are named x1,x2,… from left to right.
[1,0,0;-3,1,0;7,4,0;1,0,1]

asked 2021-05-21

Suppose that the augmented matrix for a system of linear equations has been reduced by row operations to the given reduced row echelon form. Solve the system. Assume that the variables are named \(x_1,x_2\)... from left to right.

\(\begin{bmatrix}1 & 0&0&-7&8 \\0 & 1&0&3&2 \\0 & 0&1&1&-5 \\ \end{bmatrix}\)

asked 2021-06-14

Suppose that the augmented matrix for a system of linear equations has been reduced by row operations to the given reduced row echelon form. Solve the system. Assume that the variables are named x1,x2,… from left to right. [1,2,0,2,−1,3]

asked 2021-06-03

asked 2021-05-12

asked 2021-07-04

asked 2021-06-03

Determine whether the statement is true or false. Justify your answer. You cannot write an augmented matrix for a dependent system of linear equations in reduced row-echelon form.

asked 2021-06-22